Key specs
- Area performance
- Up to 25,457 sq ft per hour (theoretical, per Kärcher)
- Working width
- 22 in brush, 29.5 in vacuum
- Tanks
- 55 L clean, 55 L recovery
- Battery
- About 4 hours; about 5.8 hours to charge
Our verdict
The KIRA B 50 is for operators with big, open hard floors who want fewer refill stops. Budget for the docking station, software and service plan on top of the base price.
What we like
- Large tanks for long runs between refills
- Optional dock refills, drains and rinses automatically
What to know
- Highest price in this guide
- Listings vary widely between resellers
How it compares
| Spec | Kärcher KIRA B 50 | DEEP Robotics Lynx M20 | Pudu D5 | Pudu CC1 |
|---|---|---|---|---|
| Price | around $56,435, docking station extra at $3,195 | $57,600; Pro version $72,000 | $34,500 with extended 5-year warranty | around $27,999 |
| Area performance | Up to 25,457 sq ft per hour (theoretical, per Kärcher) | - | - | - |
| Working width | 22 in brush, 29.5 in vacuum | - | - | - |
| Tanks | 55 L clean, 55 L recovery | - | - | 3.96 gal clean, 3.96 gal dirty |
| Battery | About 4 hours; about 5.8 hours to charge | - | - | - |
| Type | - | All-terrain quadruped | Four-legged robot for patrol, escort and transport | - |
| Variants | - | Lynx M20, M20 Pro, M20 S | - | - |
| Terrain | - | - | Marketed for challenging terrain | - |
| Functions | - | - | - | Sweeping, scrubbing, vacuuming and dust-mopping (4-in-1) |
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